1- and 2-level radio repeater. Standby loss is only 0.9 watts. For installation mounting. 45 mm long, 45 mm wide, 33 mm deep. This repeater is only necessary if the structural conditions prevent uninterrupted reception or if the distance between the radio button and receiver is too great. The 1-level mode is set by default. It only receives, checks, and retransmits radio signals from sensors with full transmission power. Radio signals from other repeaters are ignored to reduce data volume. The rotary switch allows switching to the 2-level mode. Now, in addition to the radio signals from sensors, the radio signals from another 1-level repeater are also processed. A radio signal can be received and amplified a maximum of 2 times. The LED indicates incoming radio signals with a brief flash. Radio repeaters do not need to be programmed. They receive and amplify the radio signals from all radio sensors within their reception range.